Machine for manufacture of composition boards.



H. ARMSTRONG.

MACHINE FOR MANUFACTURE OF COMPOSITION BOAR DS. APPLICATION FILED MM. 27. 1912'.

1 ,1 89,650. Patented July 4, 1916.

WITNESSES INVENTOR m v fiaWaf'dArmaimzzg iame vf ms PETERS cu. mayo-1.1mm. mmnc rim. 0. r

chines boards such as are commonly known as HOWARD ARMSTRONG, 0F LESTERSHIRE, NEW YORK.

MACHINE FOR MANUFACTURE OF COMPOSITION BOARDS.

Specif cation of Letters Patent.

Patented July 4, 1916.

Application filed March 27, 1912. Serial No. 686,648.

To all whom it mag concern Be it known that I, HOWA D ARMSTRONG, of Lestershire,'in the county ofBroome and State of New York, have invented certain new and useful Improvements in Machines for Manufacture of Composition Boards;

and I hereby declare that thefollowing is a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings, which form part of this specification. i

This invention is an improvement in mafor 'manufacturing composition leather-hoard, fiber-board, binder-board, press-board, and the like. Such machines, generally speaking, comprise means for felting or matting the stock, usually consisting of a belt upon which the wet stock is laid and upon which it is carried past means "for extracting the moisture from the stock tofa roll upon which the felt layer is Wound and compressed untila sufiicient amount has ac cumulated upon the roller toform a board of the desired thickness; then the compressed material on the, press roll is removed. In order to do this it is necessaryto first split or cut the. cylinder of material accumulated on the roll after which such material can be removed from the rollinthe form of a sheet for further treatment.

The object of the present invention is to provide an efiicient accurate and simple means for cutting or dividing" the material on the roll prior toits removal therefrom, and by which tearing or rupturing of the edges of the sheetadjacent the cut will be prevented thereby enablingthe entire cylinder or sheet accumulated uponthe roll to be utilized. 1 am aware that heretofore various attempts have been made, to out such sheets from the press rollby interiorly arranged knives, and by reciprocating cut ters; but the present invention is different from all prior devices, and I will explain same in detail with reference to the accomthe press roll of a Fourdrinier or other suitable paper making, or felting machine; and 2 designates a belt by which the felt layer is brought forward to the rolll; the present inventionhowever has nothing to do with the particular construction and operation of the means for felting'the pulp.

When the machine is in operation the moist felt layer contacting with the surface of the roll 1 adheres thereto and is wound around same under pressure against r0112 until a suflicient quantity of the felt has collected upon the roll 1 to form a cylinder or board of the desired thickness; the felt being compressed during its collection on roll 1 'by the operation of the co-acting roll 2 indicated in Fig. 1. The rolls 1 and 2 have their shafts journaled in suitable bearings in the framework of the machine as usual. I

Mounted upon the frame adjacent the ing with a bar 1", which may be of wood, fiber or rubber, set into a longitudinal.

groove 1-in the periphery of the roll 1, the 'outer edge of bar 1 being flush with and forming a continuation of the outer periphery of the roll 1. v p One end of shaft 4 projects beyond its bearings, and upon this projecting end is loosely mounted a gear 5 which meshes with will insure the edge of the blade contacta corresponding gear 1 on the adjacentend of theshaft of roll 1. The-gearfi has on its outer "facea clutch member 5 which is adapted to be engaged by an opposed clutch member 6 on a sleeve. 6 splined on the end of shaft 4 beside the gear 5, as indicated in the drawings. This sleeve 6 with its clutch member may be moved to or from the gear 5, so as to engage or disengage the clutch members, by means of a hand lever 7 which is provided with pins-7 engaging a groove inthe sleeve 6. Preferably the clutch mem bers have .only one interlocking tooth and notch, so that they will always engage at the proper point. I

A counterpoise may be attached to the outer end of the spindle of shaft l adjacent the clutch member 6, to keep the knife out i of the'way of the material being accumue latedon the press roll except when the press roll is to be used. Said counterpoise pref erably consists of a pulley 8 having a weighted portion 8 at one side, and so fixed tothe shaft 4 that when the clutch is disengaged this weight will normally return and hold shaft l in position with the knife 49 uppermost or farthest away from .the press roll' as indicated in Fig. 1.

The gears 5 and 1 are preferablyofthe same diameter and the parts should be so proportioned thatwhen the gear 5 is locked to the shaft 4, by means of the clutch, the knife will be rotated in unison with the roll 3 and the knife edge will always meet or register with the bar l on the press roll.

, The pressroll may be made of iron, wood or faced with any suitable material. The position of the knife in the knife bar may be regulated by screws or bolts llto hold it thrown in, the forward part of the knife roll in place in the slot in the roll. 7 Operation: WVhen the machine is in operation the front of the press; roll revolvesin an'upward direction, and when the clutch is moves in a downward direction," as indicated by the arrows in Fig. 3.

The operator stands beside or in front of the press roll and when avsufiicientamount of material has accumulated thereupon he throws the clutch into gear, by shifting lever 7, thereby causing the shaft ito rotate; and as it revolves the knife 4* contacts with the material on the roll and cuts through the latter until its edge strikes against the bar 1. thus making a clean cut through the material on the roll lengthwise of theroll; then the op'-. erator throws thev clutch out of gear and re moves theysevered board from theroll 1.

e The weight or counterpoise turns shaft ,4

automaticallyuntil the knife is out of position to contact with the material being accumulated thereupon. I

I do not consider the invention restricted tothe particular mode of attaching the knife to thebar nor to the particular kind of clutch :shown, nor to a manually con trollediclutch; the particular improvement or essential feature of the invention being the provision of a normally inoperative fiopiel of this patent may be obtainc d'for knife located outside of the path of the material and beside the'press roll, which at the desired time can be caused to revolve at the speed of the press roll and sever the 7 material thereon.

WhatI claim iszj e "1.111 a .machine of the character d scribed, the combination of a-press roll, a normallyidle shaft journaled beside the press roll, a knife carriedby said shaft, a

loose gear on said shaft, a gear on the press rroll-shaft meshing therewith, and. aclutch on the knife shaft whereby said shaft may be locked to the gear thereon when it is desired'to cause the knife to, sever the material on the. press roll.

2. In a 'machlne ofthe character described, the combination of a press roll, a

normally idle shaft journaled beside the pressro-ll, a knife carried by said shaft, a loose-gear on said shaft and a gear on the press rollmeshing therewith, and a clutch whereby the knife shaft may be lockedto or. disengaged from the gear thereon. to

cause the knife to sever. the material on the press roll; with means for normally holding the'knife shaftin such position that the knife will not contact with the material on the press'roll, substantially as'described.

scribed, the combination of a press roll, a sh aft journaled beside the press roll,"a knife 3. In a machine .or the character .de-

carried by said shaft, a gear looseon said knife shaft, gearing for driving said ljoose gear from the press roll, and amanually operable clutch whereby the knife shaftimay be locked to or disengaged from the gear thereon to cause the knifeto sever the material on the-press roll; wlth a weight at- .tached to said shaft adapted to normally hold the knife shaft in position to'k'eep the V knife out of contact with the materialfon the felt rollQ o v 1 1 In testimony that I claim the foregoingflas myown, I afiix my signature in presence of two witnesses.

Witnesses'z v V I v 7 P. W; HAT AWAY, I Mamuon PAGE. I

five centseaeh, by addressing the Commissioner of ratent st Washington; D. G." 1

.. HOWARD-ARMSTRONG. 

